How to Resolve Error 27502 could not connect Microsoft SQL Server Provider cannot be found It may not be properly installed

[11/10/16 08:46AM]

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Error 27502 could not connect Microsoft SQL Server. Provider cannot be found. It may not be properly installed.

I'm trying to install software update from the Optimum Solutions.During the installation the Error message:"Error 27502 could not connect Microsoft SQL Server.Provider cannot be found.It may not be properly installed" pops up.This is on Windows Server 2003 with SQL Server 2005.

Keys to the Problem Error 27502 could not connect Microsoft SQL Server. Provider cannot be found. It may not be properly installed.